Go to the challenge called the Battle of the Giants, you can make 3 anagrams and you will get the IQ of 200.
You start with 8 people on your tile and can make an anagram with a solver such as these:
http://grecni.com/texttwist.php?queryhttp://homepage.ntlworld.com/adam.bozon/scrabble.htmThe other way to do it is to play normally and maximise the score for each play you make, so using your highest value tiles to maximise your score.
Good luck trying to do this aggravating achievement without an anagram solver!